basic.alpha Function/BASIC Program

basic.alpha

Command basic.alpha Function/BASIC Program
Applicable release versions: AP, R83
Category BASIC Program (486)
Description evaluates the expression and returns "1 ("true") if every character in the string is alphabetic (i.e. a-z upper & lower case), or "0" (zero - "false") if any character is non-alphabetic.

The empty (null) string ("") is considered non-alphabetic.
Syntax alpha(expression)
Options
Example
if alpha(response) then array(1) = response

If the value of the variable, "response", is made up of only alpha 
characters, it is assigned to the first element of "array".
Purpose
Related basic.statements
basic.match
basic.search.for.truth
basic.num
basic.functions